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dia-

 - 4 dictionary results

dia-

a prefix occurring in loanwords from Greek (diabetes; dialect) and used, in the formation of compound words, to mean “passing through” (diathermy), “thoroughly,” “completely” (diagnosis), “going apart” (dialysis), and “opposed in moment” (diamagnetism).
Also, especially before a vowel, di-.


Origin:
< Gk, comb. form repr. diá (prep.) through, between, across, by, of, akin to dýo two and di- di- 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To dia-
dia- or di-  
pref.  
  1. Through: diachronic.

  2. Across: diatropism.


[Greek, from dia, through.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

dia- or di-
pref.

  1. Through: diapedesis.

  2. Across: diameter.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Science Dictionary
dia-  
A prefix meaning "through" or "across," as in diameter, the length of a line going through a circle.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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